Postdoc position in the Thermionic Gun project (V34.3382)

Postdoc position in the Thermionic Gun project

Two-year postdoc position in the Thermionic Gun project: a high repetition rate, low-emittance electron source for accelerator-based light sources.
(Postdoctoraal) onderzoeker
Faculteit Technische Natuurkunde



High brightness X-ray light sources are now making the transition from research laboratories into industry, where reliability and cost become important parameters. State-of-the-art high average current pulsed electron sources use semiconductor photocathodes that require ultra-high vacuum, a high power laser system and have limited cathode lifetime. Alternatively, thermionic sources can operate 24/7 in much relieved vacuum conditions for more than 5000 hours, but the continuous beam needs to be chopped into short bunches for further acceleration.

The postdoc position is part of the Thermionic Gun project that is aimed at the development of a DC thermionic source operating at 100 kV for the generation of 100 nm rad emittance, picocoulomb electron bunches at gigahertz repetition rates. The project is financed by the high-tech company ASML.

Project description

The Thermionic Gun will be built at TU/e by a ~5 person project team, consisting of experienced accelerator physicists, a PhD student and technicians. The 4-year project has started in 2017 and entails the design, construction and realization of a high-brightness pulsed electron source. The Thermionic Gun consists of a DC thermionic electron source and two multiple-harmonic radio frequency cavities for the chopping and compressing of the beam. The postdoc we are looking for will be working on the characterization of the electron beam, as well as the design and implementation of the multiple-harmonic cavities. We are looking for an experimental physicist or physics engineer with experience in accelerator and beam physics.

The Thermionic Gun project will be supervised by Jom Luiten and Peter Mutsaers.


The work will be mostly performed in the Coherence and Quantum Technology group of the Department of Applied Physics on the campus of Eindhoven University of Technology. The research in the CQT group is centered on coherence in ensembles of atoms, ions, electrons and photons. We combine expertise from plasma physics, AMO physics and particle beam physics to investigate new areas and applications of these techniques, either to future technologies or to other areas in physics.


We welcome applications from candidates with a PhD degree in experimental and/or applied physics, preferably with a background and interest in beam physics. The ideal candidate has the drive and capability to tackle different aspects of a complex experimental setup with a great deal of independence, while at the same time collaborating closely and in good team spirit with the other members of the Thermionic Gun team.


We offer:

  • a challenging job in a dynamic and ambitious university and a stimulating internationally renowned research group;
  • full-time temporary appointment for initially 1 year, with outlook on appointment for 2 years;
  • a gross salary of between € 3045.-  and € 3996,- gross per month, depending on knowledge and experience (based on salary scale 10 of CAO Dutch Universities);
  • an extensive package of fringe benefits (e.g. excellent technical infrastructure, the possibility of child care and excellent sports facilities).

Informatie en sollicitatie



If interested, please use 'apply now'-button at the top of this page. Applications should include:

  • a cover letter explaining your motivation and qualifications for the position,
  • a curriculum vitae,
  • a copy of (or link where to download) your PhD thesis,
  • a list of scientific publications that you have (co-)authored.

Screening of applications will start as soon as applications are received and will continue until the position has been filled.